Added build script

.gitignore

@@ -0,0 +1,2 @@
+.DS_Store
+*.deb

build.sh

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+#!/bin/bash
+
+# ensure permissions
+chmod 0755 DEBIAN/postinst
+chmod 0755 usr/local/bin/webhookd.py
+chmod 0644 etc/systemd/system/webhookd.service
+
+dpkg-deb --build --root-owner-group webhookd